| Elk River to Odessa (Texas) | 1,041.73 mi (1,676.51 km) |
| Elk River to Ogden (Utah) | 965.56 mi (1,553.92 km) |
| Elk River to Oildale (California) | 1,495.84 mi (2,407.33 km) |
| Elk River to Ojus (Florida) | 1,531.02 mi (2,463.94 km) |
| Elk River to Okemos (Michigan) | 489.29 mi (787.44 km) |
| Elk River to Oklahoma City (Oklahoma) | 712.21 mi (1,146.20 km) |
| Elk River to Okmulgee (Oklahoma) | 683.49 mi (1,099.97 km) |
| Elk River to Olathe (Kansas) | 450.11 mi (724.38 km) |
| Elk River to Old Jamestown (Missouri) | 478.98 mi (770.84 km) |
| Elk River to Oldsmar (Florida) | 1,335.03 mi (2,148.53 km) |
| Elk River to Olean (New York) | 787.20 mi (1,266.88 km) |
| Elk River to Olive Branch (Mississippi) | 742.75 mi (1,195.34 km) |
| Elk River to Olivehurst (California) | 1,487.63 mi (2,394.11 km) |
| Elk River to Olney (Maryland) | 943.38 mi (1,518.23 km) |
| Elk River to Olympia (Washington) | 1,399.64 mi (2,252.50 km) |
